An Insecure Direct Object Reference (IDOR) in classroomio 0.1.13 allows students to access sensitive admin/teacher endpoints by manipulating course IDs in URLs, resulting in unauthorized disclosure of sensitive course, admin, and student data. The leak occurs momentarily before the system reverts to a normal state restricting access.
CVE-2025-65670
CVSS base score
4.3 (v3.1)
Severity
MEDIUM
Attack vector
Network
Weakness
CWE-639
Last modified
November 4, 2026
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Affected products
classroomio classroomio
References
- github.com Exploit, Third Party Advisory
- github.com Product